/**
* This file is part of OntoApplications (project linked with OntoCompoFramework)
*
* Copyright (C) 2011 -  Christian Brel
*
* @author   Main    Christian Brel
**/
package ontocompo.api;

import java.util.Observer;

public interface Observable {
	void addObserver(Observer o);
	void clearChanged();
	int	countObservers();
	void deleteObserver(Observer o);
	void deleteObservers();
	boolean	hasChanged();
	void notifyObservers();
	void notifyObservers(Object arg);
	void setChanged();
}
